/* Boilers listing + detail pages */

.boilers-hero {
  position: relative;
  padding: var(--space-16) 0 var(--space-12);
  background:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(255, 255, 255, 0.08) 0%, transparent 70%),
    linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 55%, #0f2a5c 100%);
  color: var(--color-white);
  text-align: center;
  overflow: hidden;
}

.boilers-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.boilers-hero__inner {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

.boilers-hero__badge {
  display: inline-block;
  margin-bottom: var(--space-5);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.95);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
}

.boilers-hero h1 {
  color: var(--color-white);
  margin: 0 auto var(--space-5);
  line-height: 1.15;
}

.boilers-hero__lead {
  max-width: 600px;
  margin: 0 auto var(--space-8);
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.7;
}

.boilers-hero__lead strong {
  color: var(--color-white);
  font-weight: 700;
}

.boilers-hero__trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3) var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.boilers-hero__trust-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}

.boilers-hero__trust-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  color: #86efac;
}

.boilers-listing {
  background: var(--color-off-white);
  padding-top: var(--space-10);
  padding-bottom: var(--space-16);
}

.boilers-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  padding: var(--space-5) var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.boilers-toolbar__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.boilers-toolbar__label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.boilers-toolbar__sort {
  min-width: 200px;
}

.boilers-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.boilers-filter__btn {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-600);
  background: var(--color-off-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.boilers-filter__btn:hover {
  color: var(--color-primary);
  background: var(--color-sky);
  border-color: var(--color-gray-200);
}

.boilers-filter__btn--active {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(35, 68, 143, 0.25);
}

.boilers-filter__btn--active:hover {
  color: var(--color-white);
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.boilers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.boilers-grid--related {
  grid-template-columns: repeat(3, 1fr);
}

/* Listing card refinements */
.boiler-card--listing {
  height: 100%;
  border-color: var(--color-gray-100);
  box-shadow: var(--shadow-sm);
}

.boiler-card--listing:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.boiler-card--listing .boiler-card__price-badge {
  top: var(--space-4);
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.boiler-card--listing .boiler-card__price-badge strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-primary);
  line-height: 1.2;
  margin-top: 2px;
}

.boiler-card--listing .boiler-card__image-wrap {
  min-height: 280px;
  padding: var(--space-8) var(--space-6) var(--space-4);
  background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.boiler-card--listing .boiler-card__image {
  max-width: 220px;
  max-height: 260px;
  transition: transform var(--transition-base);
}

.boiler-card--listing:hover .boiler-card__image {
  transform: scale(1.03);
}

.boiler-card--listing .boiler-card__body {
  padding: var(--space-5) var(--space-6) var(--space-6);
  gap: var(--space-1);
}

.boiler-card--listing .boiler-card__brand {
  color: var(--color-primary-light);
  margin-bottom: var(--space-1);
}

.boiler-card__tag {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 2;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-white);
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.boiler-card__image-link {
  display: block;
  text-decoration: none;
}

.boiler-card__title {
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: var(--space-2);
}

.boiler-card__title a {
  color: var(--color-gray-900);
  text-decoration: none;
}

.boiler-card__title a:hover {
  color: var(--color-primary);
}

.boiler-card__features {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  flex: 1;
}

.boiler-card__features li {
  position: relative;
  padding-left: var(--space-5);
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  line-height: 1.5;
}

.boiler-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.boiler-card__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.boiler-card--listing .boiler-card__actions .btn--primary {
  padding: 0.8rem 1.5rem;
  font-size: var(--text-base);
  border-radius: var(--radius-md);
}

.boiler-card__details-link {
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary-light);
}

.boiler-card__details-link:hover {
  color: var(--color-accent);
}

.boiler-card__outputs {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary-light);
  margin-bottom: var(--space-3);
}

.boiler-detail-outputs {
  margin-bottom: var(--space-5);
}

.boiler-detail-outputs__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-gray-800);
  margin-bottom: var(--space-2);
}

.boiler-detail-outputs__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.boiler-detail-outputs--info .boiler-detail-outputs__pill {
  display: inline-flex;
  align-items: center;
  min-width: 72px;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-gray-700);
  background: var(--color-off-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.boiler-detail-outputs__note {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.boiler-detail-table-intro {
  margin: calc(var(--space-2) * -1) 0 var(--space-5);
  font-size: var(--text-sm);
}

.boiler-detail-outputs__btn {
  min-width: 72px;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-gray-700);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.boiler-detail-outputs__btn:hover,
.boiler-detail-outputs__btn--active {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.boiler-spec-table--variants thead th {
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.boiler-spec-table--variants tr.is-active {
  background: rgba(35, 68, 143, 0.06);
}

.boiler-spec-table--variants tr.is-active th,
.boiler-spec-table--variants tr.is-active td {
  font-weight: 600;
}

.boilers-promo {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-8) var(--space-10);
  border-radius: var(--radius-lg);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.boilers-promo--support {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.boilers-promo--trust {
  background: linear-gradient(135deg, var(--color-gray-800) 0%, var(--color-gray-700) 100%);
}

.boilers-promo__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  margin-bottom: 0;
}

.boilers-promo__title {
  font-family: var(--font-sans);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.boilers-promo__text {
  max-width: none;
  margin-bottom: 0;
  opacity: 0.9;
  line-height: 1.65;
  font-size: var(--text-sm);
}

.boilers-promo__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex-shrink: 0;
}

.btn--white-outline {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--white-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

.boilers-footnote {
  margin-top: var(--space-10);
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-sm);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.boilers-faqs {
  max-width: 820px;
  margin: 0 auto;
}

.boilers-faqs .faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  overflow: hidden;
}

.boilers-faqs .faq-item summary {
  padding: var(--space-5) var(--space-6);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--text-base);
}

.boilers-faqs .faq-item__answer {
  padding: 0 var(--space-6) var(--space-5);
}

/* Bottom CTA */
.boilers-cta {
  padding: var(--space-16) 0;
  background: var(--color-white);
}

.boilers-cta__card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding: var(--space-10) var(--space-12);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-xl);
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
}

.boilers-cta__content {
  flex: 1;
  min-width: 280px;
}

.boilers-cta__card h2 {
  color: var(--color-white);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-3xl));
  margin-bottom: var(--space-3);
}

.boilers-cta__text {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.7;
  max-width: 520px;
  margin: 0;
}

.boilers-cta__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex-shrink: 0;
}

.boilers-cta__phone {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.boilers-cta__phone:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.boiler-card--hidden {
  display: none !important;
}

/* Detail page */
.boiler-detail-hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: start;
}

.boiler-detail-hero__media {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  padding: var(--space-8);
  background: linear-gradient(180deg, var(--color-off-white) 0%, var(--color-white) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.boiler-detail-hero__tag {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-white);
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.boiler-detail-hero__image {
  max-width: 100%;
  max-height: 420px;
  object-fit: contain;
}

.boiler-detail-hero__brand {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.boiler-detail-hero__meta {
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.boiler-detail-hero__features {
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
}

.boiler-detail-hero__features li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  line-height: 1.6;
}

.boiler-detail-hero__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.boiler-detail-price {
  padding: var(--space-6);
  background: var(--color-off-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.boiler-detail-price__label {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.boiler-detail-price__amount {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.boiler-detail-price__note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.boiler-detail-price__call {
  display: block;
  margin-top: var(--space-4);
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary-light);
}

.boiler-detail-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.boiler-detail-panel h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}

.boiler-detail-panel p {
  color: var(--color-gray-600);
  line-height: 1.75;
}

.boiler-detail-section-title {
  margin-bottom: var(--space-6);
}

.boiler-spec-table-wrap {
  overflow-x: auto;
}

.boiler-spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.boiler-spec-table th,
.boiler-spec-table td {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.boiler-spec-table th {
  width: 38%;
  font-weight: 600;
  color: var(--color-gray-800);
  background: var(--color-off-white);
}

.boiler-spec-table tr:last-child th,
.boiler-spec-table tr:last-child td {
  border-bottom: none;
}

@media (max-width: 1100px) {
  .boilers-grid--related {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .boilers-grid,
  .boiler-detail-hero__grid,
  .boiler-detail-split {
    grid-template-columns: 1fr;
  }

  .boilers-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .boilers-toolbar__sort {
    width: 100%;
  }

  .boilers-promo {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--space-8);
  }

  .boilers-promo__icon {
    margin: 0 auto;
  }

  .boilers-promo__actions {
    align-items: center;
  }

  .boilers-cta__card {
    flex-direction: column;
    text-align: center;
    padding: var(--space-8);
  }

  .boilers-cta__text {
    margin: 0 auto;
  }

  .boilers-hero {
    padding: var(--space-12) 0 var(--space-10);
  }

  .boilers-hero__trust {
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }
}

@media (max-width: 560px) {
  .boilers-grid,
  .boilers-grid--related {
    grid-template-columns: 1fr;
  }
}